Abstract

Different amounts of MgO–CaO–SiO 2–Al 2O 3 (MCAS) glass content are used as the sintering aid of 0.84(mol%)Al 2O 3–0.16(mol%)TiO 2 composition. The sintering characteristics, the crystal structures, and the microwave characteristics of MCAS glass-added 0.84Al 2O 3–0.16TiO 2 ceramics have been investigated under the sintering temperatures of 1200–1350 °C. During the sintering process, the TiO 2 and Al 2O 3 will form the Al 2TiO 5 phase. The crystal intensity of Al 2TiO 5 phase increases and that of TiO 2 phase decreases with the increase of sintering temperature. In this study, the MCAS glass content and sintering temperature have large effects on the sintering and microwave dielectric characteristics of MCAS glass-added 0.84Al 2O 3–0.16TiO 2 ceramics.

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